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117089 (2004 LK31)
Classification: Main-belt Asteroid          SPK-ID: 2117089
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

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Orbital Elements at Epoch 2459000.5 (2020-May-31.0) TDB
Reference: JPL 20 (heliocentric ecliptic J2000)
 Element Value Uncertainty (1-sigma)   Units 
e .2435999182603683 3.9946e-08  
a 2.675222212015368 1.7515e-08 au
q 2.023538299840102 1.057e-07 au
i 12.73096210148237 5.8496e-06 deg
node 178.8861519826082 2.0892e-05 deg
peri 87.41904849732668 2.3989e-05 deg
M 258.0746342132598 1.3539e-05 deg
tp 2459452.999389192339
(2021-Aug-26.49938919)
6.2349e-05 TDB
period 1598.226102519755
4.38
1.5695e-05
4.297e-08
d
yr
n .2252497312066334 2.2121e-09 deg/d
Q 3.326906124190633 2.1781e-08 au
  Orbit Determination Parameters
   # obs. used (total)      510  
   data-arc span      7621 days (20.87 yr)  
   first obs. used      1999-03-22  
   last obs. used      2020-02-01  
   planetary ephem.      DE431  
   SB-pert. ephem.      SB431-N16  
   condition code      0  
   norm. resid. RMS      .59357  
   source      ORB  
   producer      Otto Matic  
   solution date      2020-Feb-24 05:42:52  

Additional Information
 Earth MOID = 1.05651 au 
 Jupiter MOID = 1.94301 au 
 T_jup = 3.302 
[ show covariance matrix ]

Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]

Physical Parameter Table
Parameter Symbol Value Units Sigma Reference Notes
absolute magnitude H 15.6   n/a MPO426739  

117089 (2004 LK31)          Discovered 2004-Jun-12 by CSS at Catalina
Reference: 20051019/Numbers.arcLast Updated: 2005-10-26

[ show close-approach data ]
Alternate Designations
 2004 LK31 = 1999 GA28 = 2003 ER7 
Ephemeris | Orbit Diagram | Orbital Elements | Mission Design | Physical Parameters | Discovery Circumstances | Close-Approach Data ]
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